Manufacture of baked goods



A. F. HARTZELL.

l MANUFACTURE OF BAKED GOODS.

APPLICATION man Nov. 27, 191s.

.za :zz/ngi A. F. HARTZELL. MNUFACTUBE 0F BAKED GOODS.

APPLICATION FILED Nov. 27. 1918.

1,350,278, Pafentedfmg. 17,1920.

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. .UNITED STATES PATENT v.ofifiiicav AiviOS D. IIARTZELL, or KNOXVILLR BOROUGH, PENNSYLVANIA, ASSIGNOR To STANDARD OVEN COMPANY, or PITTSBURGH, PENNSYLVANIA.

MANUDACTURE or BAKED GOODS.

To all 'whom t may concern: i

Be it known that I, AMOS FpHARTzELL, a citizen of the United States, vand a resident of Knoxville borough, in the county of Alleghenyl and State of .Pennsylvanim have invented a new and useful Im rovement inthe Manufacture of Baked oodsg and I do hereby declare the following to be a full, clear, and exact description thereof.V i

My inventionrelates `to ovens, yand has Special reference to what are known vas bakers ovensfor Vusein the `baking of allI classesof baked goods, such as bread, cakes and pastry. The object of my invention is to 4provide Simple and efficient bakersoven, in which a large quantity of'bread or other articles/to be baked can be placed within the ovenby asingle operatioin-a'nd when baked can also be removed by ay Single operation, thereby cheapeningthe cost of rtime and Jlabor Vin handling Such output of such oven. p

To these'ends my invention consists, geninafter more specifically Set 'forth and described and particularly'pointed outin-thef claimS.1`

To enablenthers `Skilledinthe fart-to which myinvention appertains to use my improved Y Oven, I will describe the. same more fully, referringto the accompanying drawings, inwhieh-1 f v i f Figure 1 is a Vertical centrallsection Vof a bakers oven embodying my'invention g' f.

Fig.- 2 isa central ,sectionfof .the ovenv taken atright angles to thatfshown linFig. 1 and on t-he line 2--2 Fig. 1f,looking.` inthe direction ofthe arrows;

Fig. 3 isa`horizontalcrosssection of the Oven on the lineB-S Fig.` 1,` looking in the direction of the arrows 1": f n i Fig; 4 is alikevie'w of thesame taken On the line 44 Fig- :g2 and .looking 'i in the directioirofthe arrows;` f

Fig; 5 is a Vertical Section'of .the vupper portion ofthe/oven taken on the line 5-5 Figf4j andlooking lthe direction of the arrows; and 1 Y.

A Fig.` Giiis ahorizontal' cross section of the same`V onfthe'line 6%?6FigS. 2 andfiand 1` looking inthe v:directiono` ,thearrows v Like symbols of reference -herein indibread,A and at "the samev time increasing the'capacity and i' wall 2,2.

Specicationpof LetterSPatent. i .Patented Aug'. 17, 1920.

' Application-filed'November 27,1918. Serial No. 264,318,

cate'likeparts in reachof the figures of the drawings. l l l AS illustrated'in thevdrawings represents `my improved bakers oven,` which is formed ofthe usual-.brick work-a, and is .providedavith theJ rearxwall 1, Side walls 2 and front wall At the bottoni ofthe oveirLv isethe furnace portion4,l,which isl provided with the heating` or firing chamber 5 within f, the Same and having above Such chamber the baking chamber 6, the bottom 7 of .which is'on a level ywith the Shop floor 1B. The bottom 7 of '-the chamber 6 is Y vformedlby the top :wall' 8 of the heating chamber andis provided with. the arch l9 within. the sameand over thechamber 5.

` NVithin the oven A and around the furi nace. 4 andl bakingy chamber G- is the iirebrick li1-1ing110, and withinthe Side portionsl()il ofsuch lining and on. each side of the heating chamber 5 is the horizontal flue `11,

which communicates with each endof the chamber 5 by means of openings or fines 11 in such lining. 1V ithin each of the side portions 10 and` end :portions 10b, respectively, of the lining 1() around the lbaking chamber G are aseriesof sidelines 12 anda Seriesof endfiiues 13, the corresponding flues 12 and rv13 being inthe Same `horizontal plane. The

fluesll and 12 are connected to each other :at

theirfends by means of the corner lues 14 and 15,'which are four in number-,with theiues 14 at thejfront of the furnace A and the lues 15 at the rear of the same. lithin the portion 10ciof the lining 10 above the baking chamber 6 are the lower horizontal `fines 17 and S118, thelflues .17 being two in number, with onev on each side of the two centerflues 18 and which are between-the Sidefiues 17 and parallel therewith., Within suchportion`10c`are also located the upper horizontal lues 19V and`20which are arranged in likemanner as the flues 17 and 18 andarefdirectly abovel such flues 17 and 18 and .in line .therewith and with each other. rlhe flues 17 are separated fromitheflues 19 by the partitionlwall 21 and the {iues 18 are separated fromf'the flues 20 by the partition The side fines 17 connect withthe upper'ends of the rear corner 'flues 15 and with the Side fluesy 19 'above the same by means of thepaSsage-way 23 atthe front end of the partition wall 21 betweensuch lines, andalso Vconnect attheir rear ends with the Stack or chimney flue 24 by the angular pas'- :sage-ways19. The ycenter lues 18 connect with the upper ends of the front corner flues 14 and with thel center flues 20 above the same by means of the passage-way 25 at the reai end of the partition'wall 22, and such lues 20 connect with the center flue 26 above the saine at theii front ends by means of the passage-way 27, at the front end of the partition wall 28'between the flues 2() and flue 26,

and suoli flue 26 also connects at its rear end Y with the stack or chi-niney flue 24.

r1`he use and operation of my improved oven is as follows: The ordinaryapproved form of a metal rack C is provided with the usual wheels or casters c for moving the rack along the shop floor B and when the shelves d on such rack are filled with the required amount of filled bread pans c,

such rack is run along such lioor into the `chamber in connection with the products striking the said bottom. l The products of'combustion` will then. pass from the flues 12' and 13 through the rear corner fines 15 and up into the top flues 17, thence forward ythrough the same into flues 19, and thence by the passage-'ways 19 to the chimney 24.

The products of combustion lfrom the flues 12and 13 will also pass up the front'corner iues liinto the top flues 18, thence into the fines 20 through the passageways 25 at the rear end of the same, thence into the flue 26 through the passage-way 27 yat the front end of the same and thence into the chimney flue 24'. Y i

It willV thus be seen that in the use of inyvimproved method and oven the products ,of combustion from the fui'nace or firing chamber will pass around the baking chamber, containing the rackof bread therein in a tortuous course, so that such chamber will be thoroughly and completely heated thereby insuring vthe proper and rapid bak'- ingof the bread oi' othermaterial on-the rack, and thusv doing away with the `handling of eachV individual loaf Iof bread into the oven and out of the same, as well as doing away with vtheguse and vburning away of the well known paddles -or peels commonly employedintliisclass of baking." Y

It will be' evident that one or more racks Vof bread can be bakediin the oven, that the flues employed around the baking chamber can be provided with any-suitable means for cleaning the collection of dirt and carbon 'proved' oven maybe "resorted to without departing from the spirit'of the invention orl l .sacrificing'any of its advantages.

What I claim` as my invention and desire to secure by Letters Patent is: v

1. Abaking ovencomprising a furnace portion, a baking chamber above said furnace portion, means for kheating the top of 'i the baking chamber including a -pair of horif zontallyspaced,substantially horizontal fines, a second pair of vhorizontally spaced substan tially horizontalv fuesieach of the last mentioned fines beingvertically spaced with respect to one of the 'rst mentionedfluesand in communication therewith, flue `means connecting the lirstmention'ed'. pair vof fines with the furnace portion, anoutlet having`V the second'Y` pair `of `fines.r communicating therewith, the products of combustion being directed forwardly and then rearwardly ywith respect'to the baking chamberJt-hifoughsaid pairs of'flues, afthird pair of vertically spaced substantially horizontalv fines dis--y placed between the other pair of fluesfone of the same being in communicationl'with 'l said outlet, and a flue means .connecting the Y other orsaid'third pairV of lilies with Ythe furnace portion, the third pair .of iuesV being adapted to direct the products` of. combustionV` rearwardly.' andl .then f forwardly with respect to the baking chamber.

2.v A baking oven comprising afurnace portiona baking chamber above.` said furnace portion, means vfor heating thetop of the :bakingchamber including apair 'of horizontally spaced substantially yhorizontal lines, a secondy pairof horizontally spaced substantially Ahorizontal fines', ea'chof` the ylast mentioned fines beingl vertically spaced with respect to one of the rst mentioned flues and in-communicationtherewith, flue of. lues with the furnace portion', an outlet having the second pair Vof ilues communicating therewith', the productsof combus tion being directed forwardly and thenrear.-

wardlywith respect to the bakingichamber munication-tlierewith- *at* one end, a :single substantiallyA horizontal fluef; ,positioned above the :uppermost pair. of `'intermediate lues and in. communication therewith: at'` one end, the. otherend oflsaid single .Huezl being f in communicationwitli said outlet, :and a flue means connectingtlie lowermostpaii. of

intermediate flues'wi'th the furnace-portion, sald lowerinost intermediate -pair' offilues- D 11o` means connecting the-'firstumentioned "pair 1 i i being disposedabove'ftheot'her and in com# bein-g adapted to direct the productsV of combustion rearwardly to the rear end of the Lipper pair of intermediate flues for forward direction thereby, the single lues being adapted to direct said products of combustion rearwardly from the front end of the upper pair ofintermediate flues to the outlet. Y

3. A baking oven comprising a furnace portion, a substantially rectangular baking chamber disposed above said furnace portion, a vertical flue adjacent each corner of the baking chamber, means for heating the top of the baking chamber including a pair of horizontally spaced substantially horizontal illues, a second pair of horizontally spaced substantially horizontal flues, each of the last mentioned fiues being verticallyl spaced with respect to one of the first mentioned viiues and in communication therewith at its front end, the rear ends of the first mentioned pair of lues being connect- 4 ed respectively with the rear vertical [iues, a chimney outletl having the rear end of the second pair of horizontal fiues in communication therewith whereby the products of combustion will be directed forwardly and then rearwardly with respect` to the baking chamber through said pairs of flues, two pairs of substantially horizontal intermediate iiues disposed between the other pair of iiues, one of the pairs of intermediate iues being disposed above the other and in communication therewith at its rear ends, the front ends of the lowermost pair of intermediate [lues being in communication respectively with the front vertical lues, a single substantially horizontal flue positiioned above the uppermost pair of intermediate ilues and having` its front end in communication with the 'front ends thereof, the rear end of said single flue beingk in conimunication with said outlet wherebyto direct the products of combustionrearwardly to the rear end of' the uppermost pair of intermediate flues for forward direction thereby, the single flues being adapted to direct said products of combustion rearwardly from the front end of the upper pair of intermediate 'lues to the outlet. y K

In testimony whereof I, the saidAMos F. HanrziiLL, have hereunto set my hand.

AMOS F. HARTZELL. Titnesses J. M. GEOGHEGAN, J. N. Coomi. 

